JP2001172622A - Green light emitting fluorescent substance for plasma display panel and method for producing the same - Google Patents
Green light emitting fluorescent substance for plasma display panel and method for producing the sameInfo
- Publication number
- JP2001172622A JP2001172622A JP2000328362A JP2000328362A JP2001172622A JP 2001172622 A JP2001172622 A JP 2001172622A JP 2000328362 A JP2000328362 A JP 2000328362A JP 2000328362 A JP2000328362 A JP 2000328362A JP 2001172622 A JP2001172622 A JP 2001172622A
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- Prior art keywords
- phosphor
- compound
- green light
- display panel
- plasma display
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/64—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing aluminium
- C09K11/647—Borates
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- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
- Gas-Filled Discharge Tubes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はプラズマディスプレ
イパネル(以下plasma display panel: PDPということが
ある)用緑色発光蛍光体及びその製造方法に係り、より
詳細には色純度及び輝度特性に優れているためにプラズ
マディスプレイパネルの白色色温度及び色再現範囲特性
を向上することが可能な緑色発光蛍光体及びこの緑色発
光蛍光体の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a green light-emitting phosphor for a plasma display panel (PDP) and a method of manufacturing the same, and more particularly, to a method for producing a phosphor having excellent color purity and luminance characteristics. Therefore, the present invention relates to a green light-emitting phosphor capable of improving white color temperature and color reproduction range characteristics of a plasma display panel, and a method of manufacturing the green light-emitting phosphor.
【０００２】[0002]
【従来の技術】一般のPDPは、プラズマ放電による発光
または放電により励起された蛍光体に画像を形成する装
置であって、プラズマディスプレイパネルの放電空間に
設けられた二つの電極に所定の電圧を印加して、両電極
間でプラズマ放電を発生させ、このグロー放電時に発生
する紫外線により所定パターンの蛍光体層を励起して画
像を形成させることを駆動原理とする。2. Description of the Related Art A general PDP is an apparatus for forming an image on a phosphor excited by light emission or discharge by plasma discharge. A predetermined voltage is applied to two electrodes provided in a discharge space of a plasma display panel. The driving principle is that a plasma discharge is generated between both electrodes by applying the voltage, and the phosphor layer having a predetermined pattern is excited by ultraviolet rays generated at the time of the glow discharge to form an image.
【０００３】前記蛍光体層を形成する物質中、緑色発光
蛍光体としては、輝度特性に非常に優れた亜鉛シリケー
ト系蛍光体が主に使われる。この亜鉛シリケート系緑色
発光蛍光体の具体的な例としては亜鉛オルトシリケート
で活性化されたMnであるZn2SiO4:Mnがある。ところがこ
の蛍光体は輝度特性に優れるが、色純度が悪い。[0003] Among the materials forming the phosphor layer, a zinc silicate-based phosphor excellent in luminance characteristics is mainly used as a green light-emitting phosphor. A specific example of the zinc silicate-based green light-emitting phosphor is Zn 2 SiO 4 : Mn, which is Mn activated with zinc orthosilicate. However, this phosphor has excellent luminance characteristics, but has poor color purity.
【０００４】一方、プラズマディスプレイパネルの構造
及び製造工程が発展するにつれて、蛍光体の色純度を向
上させることによって、パネルの白色色温度を上昇させ
るとともにプラズマディスプレイパネルの輝度を向上す
ることが重要な課題となりつつある。それにともない輝
度に優れるが色純度が良くないZn2SiO4:Mn蛍光体に、輝
度は低いが色純度が優れたバリウムアルミネート蛍光体
を混合して使用する方法が提案された。On the other hand, as the structure and manufacturing process of the plasma display panel have evolved, it is important to improve the color purity of the phosphor, thereby increasing the white color temperature of the panel and improving the brightness of the plasma display panel. It is becoming an issue. Accordingly, there has been proposed a method of mixing a Zn 2 SiO 4 : Mn phosphor which is excellent in brightness but has poor color purity with a barium aluminate phosphor which is low in brightness but excellent in color purity.
【０００５】しかし、このように亜鉛シリケート蛍光体
とバリウムアルミネート蛍光体を混合使用しても色純度
と輝度特性は満足できる水準ではなく、まだ改善する余
地が残されている。[0005] However, even if the zinc silicate phosphor and the barium aluminate phosphor are mixed and used as described above, the color purity and the luminance characteristics are not at a satisfactory level, and there is still room for improvement.
【０００６】[0006]
【発明が解決しようとする課題】本発明の第１目的は、
優れた色純度と輝度特性とを有するプラズマディスプレ
イパネル用の緑色発光蛍光体を提供し、それにより、プ
ラズマディスプレイパネルの白色色温度と色再現範囲と
を広げることである。The first object of the present invention is to
An object of the present invention is to provide a green light emitting phosphor for a plasma display panel having excellent color purity and luminance characteristics, thereby extending a white color temperature and a color reproduction range of the plasma display panel.
【０００７】本発明の第２目的は、前記プラズマディス
プレイパネル用緑色発光蛍光体の製造方法を提供するこ
とである。A second object of the present invention is to provide a method of manufacturing the green light emitting phosphor for a plasma display panel.
【０００８】[0008]
【課題を解決するための手段】前記第１目的を達成する
ために本発明では、式１ Ba1-xMnxAl12-yByO19 （１） （式中、０.００１≦x≦０.５,０.０１≦y≦１.０であ
る）で表されるプラズマディスプレイパネル用緑色発光
蛍光体を提供する。In order to achieve the first object, according to the present invention, the following formula 1 is used: Ba 1-x Mn x Al 12-y B y O 19 (1) (where 0.001 ≦ x ≦ 0.5, 0.01 ≦ y ≦ 1.0) is provided.
【０００９】前期第２目的を達成するために本発明では
式１ Ba1-xMnxAl12-yByO19 （１） （式中、０.００１≦x≦０.５,０.０１≦y≦１.０であ
る）で表されるプラズマディスプレイパネル用緑色発光
蛍光体の製造方法であって下記段階：Ba化合物、Mn化合
物、Al化合物及びB化合物の混合物を空気の存在下、１
０００乃至１５００℃で１次焼成する段階及び、前記１
次焼成の結果物を還元性ガス雰囲気下、１０００乃至１
５００℃で２次焼成する段階と、を含むことを特徴とす
るプラズマディスプレイパネル用緑色発光蛍光体の製造
方法を提供する。In order to achieve the second object, the present invention uses the formula 1 Ba 1-x Mn x Al 12-y B y O 19 (1) (where 0.001 ≦ x ≦ 0.5,0.5. 01 ≦ y ≦ 1.0), comprising the steps of: mixing a mixture of a Ba compound, a Mn compound, an Al compound and a B compound in the presence of air, 1
First firing at 000 to 1500 ° C .;
The result of the next firing is 1000 to 1 in a reducing gas atmosphere.
And performing a second baking at 500 ° C ..
【００１０】[0010]
【発明の実施の形態】プラズマディスプレイパネル用緑
色発光蛍光体は、主に入射するUV光（紫外光）であって
１４７nm付近の波長を有する放射により発光し、蛍光体
表面だけが発光に寄与する。従って、蛍光体の発光効率
は表面欠陥の存在に非常に大きく依存する。DESCRIPTION OF THE PREFERRED EMBODIMENTS A green light-emitting phosphor for a plasma display panel emits light mainly by incident UV light (ultraviolet light) having a wavelength of around 147 nm, and only the phosphor surface contributes to light emission. . Therefore, the luminous efficiency of the phosphor depends very much on the presence of surface defects.
【００１１】本発明は励起光として、波長約１４７nmの
放射によって発光するバリウムアルミネート系蛍光体の
BaAl12O19:MnにB化合物を添加して輝度と色純度特性に
優れた式１で表される緑色発光蛍光体を提供する。この
際B化合物は色純度特性に優れたBaAl12O19:Mn蛍光体の
エネルギーバンドギャップを広げることで励起光の吸収
率を増加するとともに蛍光体の結晶性を向上させる。ま
た、B化合物は蛍光体表面の欠陥を減らすフラックスと
して作用することによって蛍光体の発光効率を向上す
る。According to the present invention, there is provided a barium aluminate-based phosphor which emits light with a wavelength of about 147 nm as excitation light.
A green light-emitting phosphor represented by Formula 1 having excellent luminance and color purity characteristics is provided by adding a B compound to BaAl 12 O 19 : Mn. At this time, the B compound increases the energy absorptivity of the excitation light by widening the energy band gap of the BaAl 12 O 19 : Mn phosphor having excellent color purity characteristics, and also improves the crystallinity of the phosphor. In addition, the B compound improves the luminous efficiency of the phosphor by acting as a flux that reduces defects on the phosphor surface.
【００１２】Ba1-xMnxAl12-yByO19 （１） （式中、０.００１≦x≦０.５,０.０１≦y≦１.０であ
る） 前記式１の緑色発光蛍光体は、xが０.０３乃至０.３で
あることが望ましい。xが０.１の時にyが０.２乃至０.
４の場合がより望ましく、特にxが０.１の時にyが０.２
であれば非常に良好な輝度及び色純度特性を示す。Ba 1-x Mn x Al 12-y B y O 19 (1) (where 0.001 ≦ x ≦ 0.5, 0.01 ≦ y ≦ 1.0) It is desirable that x of the green light emitting phosphor is 0.03 to 0.3. When x is 0.1, y is 0.2 to 0.2.
4 is more preferable, and especially when x is 0.1, y is 0.2.
Shows very good luminance and color purity characteristics.
【００１３】本発明に係る式１の緑色発光蛍光体は、以
下に記載する固相法により製造される。The green light-emitting phosphor of the formula 1 according to the present invention is produced by the solid phase method described below.
【００１４】先ず、出発物質としてBa化合物、Mn化合
物、Al化合物及びB化合物を混合する。この際前記４つ
の成分の混合モル比は各々Ba化合物が０.５乃至０.９９
９モル、Mn化合物が０.００１乃至０.５モル、Al化合物
が１１乃至１１.９９モル及びB化合物が０.０１乃至１.
０モルである。そしてBa化合物としてはBaCO3、BaO、Ba
Cl 2、Ba(NO3)2またはBa[OCH(CH3)2]2を使用し、Mn化合
物としてはMnF2、MnCl2、MnOまたはMn(NO3)2・XH2O(Xは
４乃至６の整数)を使用し、Al化合物としてはAl2O3また
はAl(OH)3を使用し、B化合物としてはB2O3またはH3BO3
を使用する。First, a Ba compound and a Mn compound are used as starting materials.
, An Al compound and a B compound. At this time, the four
The mixing molar ratio of the components is such that the Ba compound is 0.5 to 0.99 each.
9 mol, 0.001 to 0.5 mol of Mn compound, Al compound
Is 11 to 11.99 mol and the B compound is 0.01 to 1.
0 mol. And as a Ba compound, BaCOThree, BaO, Ba
Cl Two, Ba (NOThree)TwoOr Ba [OCH (CHThree)Two]TwoUsing Mn compound
MnF as a thingTwo, MnClTwo, MnO or Mn (NOThree)Two・ XHTwoO (X is
(An integer of 4 to 6), and the Al compound is AlTwoOThreeAlso
Is Al (OH)ThreeAnd B is used as the B compound.TwoOThreeOr HThreeBOThree
Use
【００１５】次いで、前記Ba化合物、Mn化合物、Al化合
物及びB化合物を含有する混合物を十分に混合した後、
これを空気の存在下で１０００乃至１５００℃で、望ま
しくは１３００乃至１３５０℃で０.５乃至５時間１次
焼成する。Next, after thoroughly mixing the mixture containing the Ba compound, the Mn compound, the Al compound and the B compound,
This is first fired in the presence of air at 1000 to 1500 ° C., preferably at 1300 to 1350 ° C. for 0.5 to 5 hours.
【００１６】その後、焼成された結果物を還元性ガス雰
囲気下で１０００乃至１５００℃、望ましくは１３００
乃至１３５０℃で０.５乃至３時間２次焼成する。ここ
で還元性ガス雰囲気下で２次焼成を実施する理由は、空
気の存在下で行われた１次焼成により引き起こされた酸
化性雰囲気を除去し、一部酸化された物質を還元するた
めである。そして前記還元性ガスは特に制限はないが、
体積比で９５：５の窒素/水素混合ガスを用いてもよ
い。Thereafter, the calcined product is heated in a reducing gas atmosphere at 1000 to 1500 ° C., preferably 1300 ° C.
Second firing at 0.5 to 1350 ° C. for 0.5 to 3 hours. The reason why the secondary firing is performed in a reducing gas atmosphere is to remove the oxidizing atmosphere caused by the primary firing performed in the presence of air and reduce partially oxidized substances. is there. And the reducing gas is not particularly limited,
A 95: 5 nitrogen / hydrogen mixed gas at a volume ratio may be used.
【００１７】１次焼成温度及び２次焼成温度が前記温度
範囲を外れる場合には最終的に得られる蛍光体の輝度が
不良となるので望ましくない。If the primary sintering temperature and the secondary sintering temperature are out of the above-mentioned temperature ranges, the luminance of the finally obtained phosphor is undesirably poor.
【００１８】２次焼成を経て得られた蛍光体（結果物）
を１乃至２０%の塩酸水溶液で洗浄した後、水で洗浄を
おこない、乾燥することによって式１の緑色発光蛍光体
が得られる。ここで塩酸水溶液で洗浄する理由は、蛍光
体表面に残留する未反応物質や欠陥をなくすためであ
る。そして水で洗浄した後の乾燥温度は５０乃至１２０
℃が望ましい。この際乾燥温度が５０℃未満の場合には
乾燥に長時間がかかり、乾燥温度が１２０℃をよりも高
い場合には蛍光体粒子間の凝集が起こるため望ましくな
い。Phosphor obtained after secondary firing (result)
Is washed with a 1 to 20% aqueous hydrochloric acid solution, washed with water, and dried to obtain a green light-emitting phosphor of Formula 1. The reason for washing with an aqueous hydrochloric acid solution is to eliminate unreacted substances and defects remaining on the phosphor surface. The drying temperature after washing with water is 50 to 120.
C is desirable. At this time, if the drying temperature is lower than 50 ° C., it takes a long time to dry. If the drying temperature is higher than 120 ° C., aggregation between the phosphor particles occurs, which is not desirable.
【００１９】前記方法に従って得られた緑色発光蛍光体
は、色純度と輝度特性に優れる。また、得られた緑色発
光蛍光体はパネルの白色色温度を９０００K以上に向上
させる。これらの特徴をプラズマディスプレイパネルに
応用することでプラズマディスプレイパネルの画質を改
善することが可能である。The green light-emitting phosphor obtained according to the above method has excellent color purity and luminance characteristics. Further, the obtained green light-emitting phosphor increases the white color temperature of the panel to 9000K or more. By applying these features to the plasma display panel, it is possible to improve the image quality of the plasma display panel.
【００２０】[0020]
【実施例】以下、本発明を下記の実施例を挙げて説明す
るが、本発明が下記の実施例に限られるものではない。The present invention will be described below with reference to the following examples, but the present invention is not limited to the following examples.
【００２１】下記の実施例１−８は、０.１モルのMnを
基準としてBの最適組成を決定するための実験例であ
り、引き続く実施例９-１４は、０.２モルのBを基準と
してBaによって置換されるMnの最適組成を決定するため
の実験例である。The following Examples 1-8 are experimental examples for determining the optimum composition of B on the basis of 0.1 mol of Mn. 4 is an experimental example for determining an optimum composition of Mn substituted by Ba as a reference.
【００２２】＜実施例１＞BaCO3を０.９モル、MnF2を
０.１モル、Al2O3を１１.９５モル及びB2O3を０.０５モ
ルの混合物を１時間ミリングした。次いで、前記混合物
を気孔サイズが５０μmのナイロン布によりふるいにか
け、このふるいにかける過程を３回反復して微細粒子だ
けを選別した。[0022] <Example 1> BaCO 3 0.9 moles, for 1 hour milled MnF 2 0.1 mol of an Al 2 O 3 11.95 moles and B 2 O 3 0.05 mole mixture of . Next, the mixture was sieved with a nylon cloth having a pore size of 50 μm, and this sieving process was repeated three times to select only fine particles.
【００２３】このようにして得られた結果物をるつぼに
入れ、炉中で１３００℃で２時間１次焼成を行った。次
いで、１次焼成の結果物を臼を用いてミリングした後、
気孔サイズが５０μmのナイロン布によりふるいにか
け、このふるいにかける過程を３回反復して微細粒子だ
けを選別した。The obtained product was placed in a crucible and subjected to primary firing in a furnace at 1300 ° C. for 2 hours. Next, after milling the result of the primary firing using a mortar,
The mixture was sieved with a nylon cloth having a pore size of 50 μm, and this sieving process was repeated three times to select only fine particles.
【００２４】その後、結果物を９５:５の体積比の窒素/
水素混合ガス雰囲気下において、１３００℃で２時間焼
成した。次いで、気孔サイズが５０μmのナイロン布を
通してふるいにかけ、このふるいにかける過程を３回反
復して微細粒子だけを選別した。得られた結果物を１０
%塩酸水溶液で洗浄した後、これを蒸溜水で数回洗浄し
た。蒸溜水で洗浄された蛍光体を１００℃で１０時間乾
燥してから、再びミリングを実施し気孔サイズが５０μ
mのナイロン布によりふるいにかけ、このふるいにかけ
る過程を３回反復して微細粒子だけを選別した。Thereafter, the resulting product was subjected to a 95: 5 volume ratio of nitrogen /
In a hydrogen mixed gas atmosphere, firing was performed at 1300 ° C. for 2 hours. Next, the mixture was sieved through a nylon cloth having a pore size of 50 μm, and this sieving process was repeated three times to select only fine particles. The obtained result is 10
After washing with a hydrochloric acid aqueous solution, this was washed several times with distilled water. The phosphor washed with distilled water was dried at 100 ° C. for 10 hours, and then milled again to reduce the pore size to 50 μm.
m, and the process of sieving was repeated three times to select only fine particles.
【００２５】このようにして得られた蛍光体を１４６nm
の真空紫外線で励起して蛍光体の相対輝度と色座標特性
を測定した。この際、蛍光体の相対輝度を示すための基
準蛍光体としては商業的に得られるZn2SiO4:Mnを使用し
た。The thus obtained phosphor was 146 nm
Were excited with vacuum ultraviolet rays, and the relative luminance and color coordinate characteristics of the phosphor were measured. At this time, commercially available Zn 2 SiO 4 : Mn was used as a reference phosphor for indicating the relative luminance of the phosphor.
【００２６】＜実施例２−８＞B2O3の量が各々０.１、
０.２、０.３、０.４、０.５、０.７５及び１.０モルで
あることを除いては、実施例１と同じ方法で蛍光体を製
造し、得られた蛍光体の相対輝度と色座標特性を測定し
た。<Example 2-8> The amount of B 2 O 3 was 0.1,
A phosphor was prepared in the same manner as in Example 1, except that the phosphor was 0.2, 0.3, 0.4, 0.5, 0.75, and 1.0 mole, and the obtained phosphor was obtained. Were measured for relative luminance and color coordinate characteristics.
【００２７】＜実施例９＞BaCO3 ０.９７モル、MnF2
０.０３モル、Al2O3 １１.８モル及びB2O3 ０.２モルを
使用したことを除いては、実施例１と同じ方法で蛍光体
を製造し、得られた蛍光体の相対輝度と色座標特性を測
定した。Example 9 0.97 mol of BaCO 3 , MnF 2
A phosphor was prepared in the same manner as in Example 1, except that 0.03 mol, 11.8 mol of Al 2 O 3 and 0.2 mol of B 2 O 3 were used. The relative luminance and color coordinate characteristics were measured.
【００２８】＜実施例１０−１４＞MnF2の含量が各々
０.０５、０.１２５、０.１５、０.２及び０.３モルで
あることを除いては、実施例１と同じ方法で蛍光体を製
造し、得られた蛍光体の相対輝度と色座標特性を測定し
た。Example 10-14 The same method as in Example 1 except that the contents of MnF 2 were 0.05, 0.125, 0.15, 0.2 and 0.3 mol, respectively. And the relative luminance and color coordinate characteristics of the obtained phosphor were measured.
【００２９】＜比較例１＞B2O3を使用しないことを除い
ては、実施例１と同じ方法で蛍光体を製造し、得られた
蛍光体の相対輝度と色座標特性を測定した。Comparative Example 1 A phosphor was manufactured in the same manner as in Example 1 except that B 2 O 3 was not used, and the relative luminance and color coordinate characteristics of the obtained phosphor were measured.
【００３０】＜比較例２＞実施例１の蛍光体の代わりに
１:３重量比のBaAl12O19:MnとZn2SiO4:Mn蛍光体混合物
を用いたことを除いては、実施例１と同じ方法で蛍光体
を製造し、得られた蛍光体の相対輝度と色座標特性を測
定した。Comparative Example 2 The procedure of Example 1 was repeated except that a phosphor mixture of BaAl 12 O 19 : Mn and Zn 2 SiO 4 : Mn in a weight ratio of 1: 3 was used instead of the phosphor of Example 1. A phosphor was manufactured in the same manner as in Example 1, and the relative luminance and color coordinate characteristics of the obtained phosphor were measured.
【００３１】＜比較例３＞実施例１の蛍光体の代わりに
１:１重量比のBaAl12O19:MnとZn2SiO4:Mn蛍光体混合物
を用いたことを除いては、実施例１と同じ方法で蛍光体
を製造し、得られた蛍光体の相対輝度と色座標特性を測
定した。Comparative Example 3 The procedure of Example 1 was repeated except that the phosphor of Example 1 was replaced by a 1: 1 weight ratio of a mixture of BaAl 12 O 19 : Mn and Zn 2 SiO 4 : Mn phosphors. A phosphor was manufactured in the same manner as in Example 1, and the relative luminance and color coordinate characteristics of the obtained phosphor were measured.
【００３２】下記表１と２は、前記実施例１−１４及び
比較例１−３によって製造された蛍光体の相対輝度と色
座標特性を示すものである。Tables 1 and 2 below show the relative luminance and color coordinate characteristics of the phosphors manufactured according to Example 1-14 and Comparative Example 1-3.
【００３３】[0033]
【表１】 [Table 1]
【００３４】[0034]
【表２】 [Table 2]
【００３５】前記表１からBの濃度が０.２乃至０.４モ
ルの時に輝度特性に優れることが分かった。また、実施
例１−８によって製造された蛍光体が比較例１−３の場
合に比べて輝度特性と色純度特性が改善されたことを確
認できた。また、表２から実施例３により製造された蛍
光体(Mn含量が０.１モルの時)が特に輝度特性と色純度
特性に優れることが分かる。From the above Table 1, it was found that when the concentration of B was 0.2 to 0.4 mol, the luminance characteristics were excellent. In addition, it was confirmed that the phosphor manufactured according to Example 1-8 had improved luminance characteristics and color purity characteristics as compared with Comparative Example 1-3. Also, Table 2 shows that the phosphor prepared according to Example 3 (when the Mn content is 0.1 mol) is particularly excellent in luminance characteristics and color purity characteristics.
【００３６】また、前記実施例１−１４及び比較例１−
３によって製造されたバリウムアルミネート系緑色発光
蛍光体をプラズマディスプレイパネルに適用して、該パ
ネルの白色色温度を測定した。Further, Example 1-14 and Comparative Example 1 were used.
The barium aluminate-based green light-emitting phosphor prepared in 3 was applied to a plasma display panel, and the white color temperature of the panel was measured.
【００３７】その結果、実施例１−８及び１２に係る緑
色発光蛍光体が９０００K以上の白色色温度を示し、比
較例１の場合(６５００K)及び比較例２及び３の場合(６
５００−７０００K)に比べて白色色温度が非常に向上し
て画質特性が改善された。As a result, the green light-emitting phosphors according to Examples 1-8 and 12 showed a white color temperature of 9000 K or more, and the cases of Comparative Example 1 (6500 K) and Comparative Examples 2 and 3 (6
(500-7000K), the white color temperature was greatly improved, and the image quality characteristics were improved.
【００３８】本発明に対して前記実施例を参考して説明
したが、これは例示的なことに過ぎなく、本発明に属す
る技術分野の通常の知識を有する者であればこれより多
様な変形及び均等な他実施例が可能であることを理解す
るはずである。従って本発明の真の技術的保護範囲は特
許請求範囲の技術的思想により決まるべきである。Although the present invention has been described with reference to the above-described embodiments, this is merely an example, and various modifications may be made by those having ordinary knowledge in the technical field of the present invention. It should be understood that other equivalent embodiments are possible. Therefore, the true technical scope of the present invention should be determined by the spirit of the appended claims.
【００３９】[0039]
【発明の効果】本発明の式１で表示される緑色発光蛍光
体は、輝度と色純度特性に非常に優れており、プラズマ
ディスプレイパネルに適用されて該パネルの白色色温度
を９０００K以上に向上させるとともに、色再現範囲を
広げ、それによってプラズマディスプレイパネルの画質
特性を改善できる。The green light-emitting phosphor represented by the formula 1 of the present invention has excellent luminance and color purity characteristics, and is applied to a plasma display panel to increase the white color temperature of the panel to 9000K or more. At the same time, the color reproduction range can be expanded, thereby improving the image quality characteristics of the plasma display panel.
【００４０】また本発明のプラズマディスプレイパネル
用緑色発光蛍光体の製造方法に従って得られた緑色発光
蛍光体は、輝度と色純度特性に優れ、この緑色発光蛍光
体をプラズマディスプレイパネルに適用することで、該
パネルの白色色温度を９０００K以上に向上させるとと
もに色再現範囲を広げ、それによってプラズマディスプ
レイパネルの画質特性を改善する。The green light-emitting phosphor obtained according to the method for producing a green light-emitting phosphor for a plasma display panel according to the present invention has excellent luminance and color purity characteristics. By applying this green light-emitting phosphor to a plasma display panel. The present invention improves the white color temperature of the panel to 9000K or more and widens the color reproduction range, thereby improving the image quality characteristics of the plasma display panel.
Claims (6)
る）で表されるプラズマディスプレイパネル用緑色発光
蛍光体。1. Formula 1 Ba 1-x Mn x Al 12-y B y O 19 (1) (where 0.001 ≦ x ≦ 0.5, 0.01 ≦ y ≦ 1.0) A green light-emitting phosphor for a plasma display panel represented by:
とする請求項１に記載の緑色発光蛍光体。2. The green light-emitting phosphor according to claim 1, wherein x is 0.03 to 0.3.
あることを特徴とする請求項１に記載の緑色発光蛍光
体。3. The green light-emitting phosphor according to claim 1, wherein when x is 0.1, y is 0.2 to 0.4.
る）で表されるプラズマディスプレイパネル用緑色発光
蛍光体の製造方法であって下記段階：Ba化合物、Mn化合
物、Al化合物及びB化合物の混合物を空気雰囲気下、１
０００乃至１５００℃で１次焼成する段階及び、 前記１次焼成の結果物を還元性ガス雰囲気下、１０００
乃至１５００℃で２次焼成する段階と、を含むことを特
徴とするプラズマディスプレイパネル用緑色発光蛍光体
の製造方法。4. Formula 1 Ba 1-x Mn x Al 12-y B y O 19 (1) (where, 0.001 ≦ x ≦ 0.5, 0.01 ≦ y ≦ 1.0) A method for producing a green light-emitting phosphor for a plasma display panel represented by the following steps: a step of mixing a mixture of a Ba compound, a Mn compound, an Al compound and a B compound in an air atmosphere,
Primary firing at 000 to 1500 ° C., and subjecting the primary firing result to a reducing gas atmosphere at 1000 ° C.
And baking at a temperature of from about 1500 ° C. to about 1500 ° C. for producing a green light emitting phosphor for a plasma display panel.
至２０%塩酸水溶液で洗浄し、水で洗浄した後、乾燥す
ることを特徴とする請求項４に記載のプラズマディスプ
レイパネル用緑色発光蛍光体の製造方法。5. The green color for a plasma display panel according to claim 4, wherein the resultant obtained after the secondary baking is washed with a 1 to 20% aqueous hydrochloric acid solution, washed with water, and then dried. A method for producing a light emitting phosphor.
O3)2及びBa[OCH(CH3)2]2からなる群より選ばれた一種で
あり、前記式１中における含量は０.５乃至０.９９９モ
ルであり、 前記Mn化合物がMnF2、MnCl2、MnO及びMn(NO3)2・XH2O(X
は４乃至６の整数)からなる群より選ばれた一種であ
り、前記式１中における含量は０.００１乃至０.５モル
であり、 前記Al化合物がAl2O3及びAl(OH)3からなる群より選ばれ
た一種であり、前記式１中における含量は１１乃至１
１.９９モルであり、 前記B化合物がB2O3及びH3BO3からなる群より選ばれた一
種であり、前記式１中における含量は０.０１乃至１.０
モルであることを特徴とする請求項４に記載のプラズマ
ディスプレイパネル用緑色発光蛍光体の製造方法。6. The method according to claim 1, wherein the Ba compound is BaCO 3 , BaO, BaCl 2 , Ba (N
O 3 ) 2 and Ba [OCH (CH 3 ) 2 ] 2 , wherein the content in the formula 1 is 0.5 to 0.999 mol, and the Mn compound is MnF 2 , MnCl 2 , MnO and Mn (NO 3 ) 2 .XH 2 O (X
Is an integer of 4 to 6), and the content in the formula 1 is 0.001 to 0.5 mol, and the Al compound is Al 2 O 3 and Al (OH) 3 Wherein the content in Formula 1 is 11 to 1
1.99 mol, wherein the compound B is a member selected from the group consisting of B 2 O 3 and H 3 BO 3 , and the content in the formula 1 is 0.01 to 1.0.
The method according to claim 4, wherein the phosphor is a mole.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-1999-0048590A KR100480766B1 (en) | 1999-11-04 | 1999-11-04 | Green-emitting phosphors for plasma display panel and preparing method thereof |
| KR99-48590 | 1999-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001172622A true JP2001172622A (en) | 2001-06-26 |
Family
ID=19618502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000328362A Withdrawn JP2001172622A (en) | 1999-11-04 | 2000-10-27 | Green light emitting fluorescent substance for plasma display panel and method for producing the same |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6454967B1 (en) |
| JP (1) | JP2001172622A (en) |
| KR (1) | KR100480766B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003292950A (en) * | 2002-04-04 | 2003-10-15 | Matsushita Electric Ind Co Ltd | Fluorescent substance and method of producing the same |
| JP2005255885A (en) * | 2004-03-12 | 2005-09-22 | National Institute For Materials Science | Phosphor and its manufacturing method |
| WO2006022150A1 (en) * | 2004-08-24 | 2006-03-02 | Konica Minolta Medical & Graphic, Inc. | Fluorescent material manufacturing method, fluorescent material and plasma display panel |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100651277B1 (en) * | 2003-07-25 | 2006-11-28 | 엘지전자 주식회사 | Green phosphor and plasma display panel |
| JP4507862B2 (en) * | 2004-12-01 | 2010-07-21 | 株式会社日立プラズマパテントライセンシング | Phosphor and apparatus using the same |
| JP2008075083A (en) * | 2006-09-20 | 2008-04-03 | Samsung Sdi Co Ltd | Green fluorescent substance for use in plasma display panel, and plasma display panel utilizing it |
| CN100445208C (en) * | 2006-12-21 | 2008-12-24 | 天津大学 | Preparing process of mesoprous composite Ba-Al oxide with great specific surface area |
| CN101130691B (en) * | 2007-08-03 | 2010-06-09 | 西安理工大学 | Method for improving luminous intensity of vacuum ultraviolet luminescent material with beta-Al2O3 structure |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52143987A (en) * | 1976-05-26 | 1977-11-30 | Dainippon Toryo Co Ltd | Gas discharge luminous eleme nt |
| JPS5354183A (en) * | 1976-10-28 | 1978-05-17 | Dainippon Toryo Co Ltd | Fluorescent substance and fluorescent lamp |
| JP3232548B2 (en) * | 1994-06-29 | 2001-11-26 | 日亜化学工業株式会社 | Afterglow phosphor |
| JPH09272867A (en) * | 1996-04-05 | 1997-10-21 | Kasei Optonix Co Ltd | Aluminate phosphor and its production |
| FR2749318B1 (en) * | 1996-05-31 | 1998-09-11 | Thomson Csf | GREEN LUMINOPHORE MATERIAL AND MANUFACTURING METHOD |
| JPH101666A (en) * | 1996-06-13 | 1998-01-06 | Kasei Optonix Co Ltd | Aluminate salt fluorescent substance, its production and vacuum ultraviolet light-exciting light-emitting element |
| JP3264239B2 (en) * | 1997-10-31 | 2002-03-11 | 松下電器産業株式会社 | Phosphor material, manufacturing method thereof, and phosphor film |
-
1999
- 1999-11-04 KR KR10-1999-0048590A patent/KR100480766B1/en not_active IP Right Cessation
-
2000
- 2000-10-27 JP JP2000328362A patent/JP2001172622A/en not_active Withdrawn
- 2000-11-01 US US09/702,851 patent/US6454967B1/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003292950A (en) * | 2002-04-04 | 2003-10-15 | Matsushita Electric Ind Co Ltd | Fluorescent substance and method of producing the same |
| JP2005255885A (en) * | 2004-03-12 | 2005-09-22 | National Institute For Materials Science | Phosphor and its manufacturing method |
| WO2006022150A1 (en) * | 2004-08-24 | 2006-03-02 | Konica Minolta Medical & Graphic, Inc. | Fluorescent material manufacturing method, fluorescent material and plasma display panel |
| US7399430B2 (en) | 2004-08-24 | 2008-07-15 | Konica Minolta Medical & Graphic, Inc. | Method for manufacturing phosphor, phosphor and plasma display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20010045330A (en) | 2001-06-05 |
| US6454967B1 (en) | 2002-09-24 |
| KR100480766B1 (en) | 2005-04-06 |
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